Improvement in machines for stretching paper collars



Nrrn dTATES CHARLES. Srorronn AND w. S. BELL, Jn., or BOSTON, MASS.

IMPROVEMENT IN MACHINES FOR STRETCI-IING PAPER COLLARS.

Specification forming part of Letters Patent No. 46,1100, dated February14, 1865.

T i all whom vit may concern:

Beitknown that we,U1-IARLES SPOFFORD and WILLIAM S. BELL, Jr.,ot'BoSton, in the county of Suffolk and State of Massachusetts, haveinvented an Improved Machine for Stretching Paper Collars; and we herebydeclare that the following is a full and exact description thereof,reference being had to the accompanying drawings, making part of thisspecification, in which- Figure l is a front view of our improvedmachine. Fig. 2 is a rear elevation of the same. Fig. 3 is a verticaltransverse section through the machine on the line a: of Fig. 1. Fig. 4.represents a collar before it is turned over, the straight line uponwhich it is turned being shown in red.

The ordinary collar cut from a strip of pa per and turned over on astraight line is objectionable, for the reason that the outer fold orportion which is turned over when bent around the neck binds closelyagainst the inner fold, leaving no space between the two for the cravator necktie, and causing the inner fold to wrinkle vertically, andpreventing it from neatly fitting the neck. These difficulv ties havebeen obviated by turning overthe outer fold ofthe collar on a curved orangular line instead of a straight line, thereby leaving sufficientspace between the folds for the necktie, as described in the LettersPatent of the United States granted to S. S. Gray on the 23d of June, A.D. 1863; and in the Letters Patent ofthe United States granted to us onthe 30th of August, A. D. 1864, we set forth the manner by which weovercame the afbresaid difticulties by stretching or elongating theouter fold, the edge on which the collar was turned being a straightline, by which means we were also enabled to produce the required springor set off to admit the necktie without creasing or wrinkling the .innerfold when bent around the neck.

Our present invention consists in an imprived machine for stretchingpaper collars, 1n which the portion ofthe strip which forms the innerfold is held within a curved recess, while that portion which forms theouter fold is pressed down by contact with a block or cylinder, or bothcombined, therebystretching and elongating the outer fold and causing itto set olf from the inner fold, as required.

llo enable others skilled in the art to understand and use ourinvention, we will now proceed to describe the manner in which we havecarried it out.

In the said drawings, A is the frame Work of the machine, in suitablebearings, in which runs the 'driving shaft B, which carries at one endthe crank-wheel C, which is connected by the pitman D to t-he slidingcarriage E, which moves up and down in Ways a in the framework. 'lhiscarriage is formed in two pieces, b c, and the lower surface of theformer and the upper surface of the latter are curved, as seen in Figs.l and 2, leaving a narrow slit or recess, d, between them fur thepurposel of receiving that portion, e, Fig. 4, of the collar which formsthe inner fold.

H is a table, which is curved to correspond to the form of the recessf1, and upon which the collar is placed before being fed into themachine. A stationary block, I, secured to the sides of the frame-work,is placed a .short distance above the table H, leaving a narrowopening,f, through which the collar is fed into the curved recess dagainst the gages g-that portion, c, only of the collar which forms theinner fold lying within this recess d. The upper part, b, ofthe carriageE is brought down so as to grasp the portion e of the collar and hold ittightly in the recess cl' in the following manner: As the wheel Crevolves, a pin, li, projecting from its inner face, strikes against ashoulder, i, formed on one side of a slide, J, and raises it into theposition seen in red, Fig. 3, the slide being connected to theframe-work by means of the pin j, passing through slots k. As the slideJ is raised, its upper end strikes against a tappet, 1,011 a shaft, K,hav- .ing its bearings in the lower portion, b, of the carriage E, bywhich the shaft K is vibrated.

ma are two rods, the lower ends of which are secured to eccentrics onthe shaft K, and

their upper ends are attached to the portion b of the carriage E b vmeans of the hinges o, andthus, as the shaft K is vibrated by means ofthe tappet l, as before explained, the upper portion, b, of the carriageE is brought down by the rods m n onto the collar, holding it firmly inthe recess d. This closing of the recess d takes place while the lowerportion, c, of the carriage E is stationary and just before it commencesto rise. As the wheel G continues to revolve, the pin h passes off theshoulder 'i and allows the slide J to drop into its original position.The vcarriage E, with the collar confined in the recess d, now commencesto rise, pressing the portion p, Fig. 4, which forms the outer fold,against the inner face of the stationary block I, the lower edge ot'which is rounded, as seen in Fig. 3, by which operation the curved edgeq, Fig. 4, is stretched or drawn out into a straight line, as indicatedby the blue line yy, and the Whole of the outer fold is stretchedthroughout, the degree of stretching being increased gradually from thered line fw w to the edge q. As the carriage continues to rise, theportion p of the collar is brought in contact with a hollow metalliccylinder, L, through which steam is made to circulate, by which means itis still further pressed and made to retain permanently its sha1 e. Therequired spring or set oft' from the inner fold is thus given to thecollar when bent around theneck, so as to admit the necktie WithoutWrinklin g.

The carriage G, as it rises, is pressed firmly against the block I andcylinder L by means of the roll M, which bears against the blocks N,attached to the back side ot' the lower portion, c, of the carriage E.The roll M and cylinder L revolve in suitable boxes in the framework A.

As the carriage Gis raised into the position seen in Fig. 2, the tappenl 'strikes against a pin, r, projecting from the frame-work, andvibrates the shaft K, thus raising vthe portion b of the carriage bymeans of the rods m u and eccentrics, as before described, When thecollar is free to be removed. The carriage nonr descends, when a freshcollar is inserted, and the operation continues as before.

The hollow cylinder L revolves independently of the connections s t,through which the steam passes, the joints being packed steamtight.

What We claim as our invention, and desire to secure by Letters Patent,is

The sliding carriage E, With its curved re.-` A

cess d, in combination with the stationary block 'I and cylinder L,operating substantiail y as set forth, for the purpose specitied. CEAS.SPOFFORD. W. s. BELL, JR. Witnesses:

l). E. TusoHEMAonER, N. W. SrEARNs.

